The obstacles Nancy Kerrigan faced as she strove (to win) the Olympic ice skating medal at Likehamma in 1944 form (the kind of) story (about whom) a fascinating novel (might) be written.
A. to win
B. the kind of
C. about whom
D. might
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考虑下述文法,S为开始符号 G1[S]:S→A A→aAb | ab G2[S] S→AA→aA |a| 下列结论中为真的是()。
A. G1是LR(0)文法,G2不是LR(1)文法
B. G2是LR(0)文法,G1不是LR(1)文法
C. G2是LR(1)文法,G1不是LR(1)文法
D. G1和G2都是LR(1)文法
(The greatest utility), of an education lies (not so much) in teaching one information (rather than) in teaching one how to deal with the information (acquired).
A. The greatest utility
B. not so much
C. rather than
D. acquired
The doctor pondered for a while, trying to recall which of several medications would be best to ______ the patient's suffering.
A. alleviate
B. restrict
C. decrease
D. diminish
下列属于纠错码的是()。
A. 循环冗余校验
B. 海明校验
C. 水平奇偶校验
D. 垂直奇偶校验